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Specifications
Power(Watts):
125mW
Resistance:
510mΩ
Mounting Type:
SMD
Current Rating:
-
Voltage Rating:
-
Type:
Current Sense Resistor
Temperature Coefficient:
±200ppm/℃
Tolerance:
±1%
Mfr. Part #:
73L3R51F
Package:
0805
Key Attributes
Model Number:
73L3R51F
Product Description
CTS 73Lx & 73Ex Series Current Sensing Resistor Flat Terminal Chip
The CTS 73Lx & 73Ex Series Current Sensing Resistors are ceramic packaged devices designed for accurate current detection. These resistors offer excellent electrical and thermal characteristics, making them suitable for a wide range of applications including current detection, current limiting, regulated battery circuits, motor control, power supplies, hard disk drives, inverters/converters, industrial equipment, and infotainment systems.
Product Attributes
- Brand: CTS
- Construction: Thick Film
- Terminal Finish: Matte Tin (e3)
- Packaging: Tape and Reel
- Certifications: RoHS Compliant in Accordance with EU Directive 2011/65/EU - Lead-Free Termination Finish - Exemption 7(c)-I, Electrical and electronic components containing lead [Pb] in glass
Technical Specifications
| Model Type | Rated Wattage (1) [Watts] @ +70C | Resistance Range [m] | Resistance Tolerance [%] | Temperature Coefficient [ppm/C] | Operating Temperature Range [C] | Working Voltage [max V] | Package Size [mm] |
|---|---|---|---|---|---|---|---|
| 73L1 | 0.100 | 200 - 910 | F=1, G=2, J=5 | 300ppm/C (73L1, 73L2), 200ppm/C (73L3-73L7) | -55C to +155C | 100V | 0402 [1005] |
| 73L2 | 0.100 | 100 - 910 | F=1, G=2, J=5 | 100ppm/C (73L3, 73L4), 200ppm/C (73L5-73L7) | V=(P*R) | 0603 [1608] | |
| 73L3 / 73E3 | 0.125 / 0.250 | 100 - 910 / 50 - 91 | F=1, G=2, J=5 | 100ppm/C | 100V | 0805 [2012] | |
| 73L4 / 73E4 | 0.250 / 0.500 | 100 - 910 / 50 - 91 | F=1, G=2, J=5 | 100ppm/C | V=(P*R) | 1206 [3216] | |
| 73L5 | 0.500 | 100 - 910 | F=1, G=2, J=5 | 100ppm/C | V=(P*R) | 1210 [3225] | |
| 73L6 / 73E6 | 0.750 / 1.000 | 100 - 910 / 50 - 91 | F=1, G=2, J=5 | 100ppm/C | V=(P*R) | 2010 [5025] | |
| 73L7 | 1.000 | 200 - 910 | G=2, J=5 | 200ppm/C | V=(P*R) | 2512 [6432] |
Environmental Parameters
| Test Description | Maximum Delta R [%] | Conditions |
|---|---|---|
| Thermal Cycle | 5.00 | 5 cycles -55C to +125C |
| Short Time Overload | 2.50 | 2 times rated working voltage for 5 seconds |
| Moisture Resistance | 3.00 | 240 hours; +40C, 90% RH |
| High Temperature Exposure | 3.00 | 1,000 hours @ +155C, no load |
| Load Life | 5.00 | 1,000 hours @ +70C, rated load |
| Resistance to Solder Heat | 3.00 | 10 seconds @ +260C solder |
| Resistance to Solvents | - | Isopropyl alcohol, Freon TMC |
| Solderability | - | RMA Flux, +230C, 5 seconds dip, 95% coverage |
Mechanical Specifications
| Model Type | Package Code | Dimensions [mm] (L x W x T) | Recommended Pad Layout [mm] (A x B) |
|---|---|---|---|
| 73L1 | 0402 [1005] | 2.00 x 0.70 x 0.60 | 0.25 x 0.25 |
| 73L2 | 0603 [1608] | 3.00 x 1.20 x 1.00 | 0.50 x 0.40 |
| 73L3 / 73E3 | 0805 [2012] | 4.00 x 1.65 x 1.20 | 0.40 x 0.40 |
| 73L4 / 73E4 | 1206 [3216] | 5.00 x 2.00 x 2.20 | 0.50 x 0.40 |
| 73L5 | 1210 [3225] | 5.00 x 2.90 x 2.20 | 0.50 x 0.50 |
| 73L6 / 73E6 | 2010 [5025] | 6.60 x 3.00 x 3.20 | 0.60 x 0.60 |
| 73L7 | 2512 [6432] | 8.20 x 3.70 x 4.20 | 1.00 x 0.56 |
Packaging Information
| Model Type | Tape Type | Tape Width [mm] | Reel Diameter [mm] | Quantity Per Reel |
|---|---|---|---|---|
| 73L1 | Paper | 8.00 | 180 | 4,000 |
| 73L2 | Paper | 8.00 | 180 | 4,000 |
| 73L3 / 73E3 | Paper | 8.00 | 180 | 5,000 |
| 73L4 / 73E4 | Embossed | 8.00 | 180 | 5,000 |
| 73L5 | Embossed | 8.00 | 180 | 5,000 |
| 73L6 / 73E6 | Embossed | 16.00 | 180 | 5,000 |
| 73L7 | Embossed | 16.00 | 180 | 10,000 |
2411041627_CTS-73L3R51F_C2111216.pdf
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